DeKalb County Climate
DeKalb County, Alabama
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
59.6°F
Annual Precip
57.2"
Annual Snowfall
3.1"
Extreme Heat Days
34
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8a
Minimum winter temperature range for plant survival
4,599
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: DeKalb County
Climate Verdict
DeKalb County has a mild, with an average annual temperature of 59.6°F, very wet conditions receiving 57.2 inches of precipitation annually, occasional hot days — 34.339999999999996 per year above 90°F, light snow averaging 3.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 40.2°F. summers are warm — July averages 77.6°F. The 37°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
DeKalb County is 3.6°F cooler than the Alabama statewide average of 63.2°F, the county experiences 29.594741379310356 fewer extreme heat days than the state average.
Climate Profile
About DeKalb County Weather
Alabama's Cooler Mountainous Climate
DeKalb County averages 59.6°F annually, making it one of the coolest counties in the state. Its climate is more in line with national averages than the rest of Alabama.
The State's Cool Weather Anchor
At 59.6°F, DeKalb is nearly 4 degrees cooler than the Alabama state average of 63.2°F. This makes it a popular refuge from the state's more intense southern heat.
Coolest in the North Region
DeKalb is slightly cooler than Cullman County's 60.0°F average. It also records 3.1 inches of snow annually, which is significantly higher than most of its neighbors to the south.
True Winters and Mild Summers
The county experiences a real winter with an average of 42.4°F and over 3 inches of snow. Summers are much milder than the state average, with only 34 days exceeding 90°F.
Winterize Homes for Snow and Ice
Unlike most of Alabama, DeKalb residents must prepare for 3.1 inches of snow and freezing 40.2°F January averages. Home heating and pipe insulation are higher priorities here than in the southern counties.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.